The finale of All Her Fault has left Peacock viewers absolutely shocked. The thriller dropped all 8 episodes on Nov. 6, 2025. Sarah Snook and Dakota Fanning deliver powerhouse performances. What happens in the final episode will blow your mind completely.
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🔥 Quick Facts:
- All Her Fault premiered exclusively on Peacock with all 8 episodes
- Marissa Irvine murders Peter using his soy allergy in shocking twist
- The finale features graphic violence and a stunning body count
- Critics praise the series for taut pacing and strong cast performances
- Based on Andrea Mara’s bestselling 2021 novel of same name
What Actually Happened in the Finale
The explosive ending reveals Marissa orchestrated Peter’s death. After learning shocking secrets about her husband, she triggers his soy allergy deliberately. He collapses and dies, leaving audiences reeling. The twist reframes everything viewers thought about the mystery.
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Detective McConville discovers the truth but chooses not to investigate further. He tells Marissa he knows what Peter did and feels “fine” letting it go. This moral ambiguity shocked viewers who expected traditional justice. The detective essentially becomes complicit in the cover-up.
“The ending has all the narrative cogs turning and interlocking seamlessly.”
Why This Ending Shocked Everyone
The series takes a horrifying dark turn that most viewers never predicted. Carrie Finch appears wielding a gun as threats explode everywhere. She shoots Colin during a tense confrontation, and he dies on screen. The violence escalates beyond typical thriller boundaries.
You’ll discover that Peter harbors a devastating secret about their son Milo. He switched their baby with another child years ago. Marissa never knew the truth until the final moments. Multiple bodies pile up as buried lies continue unraveling catastrophically.
The ending forces you to reconsider every character’s motivations and loyalties. Nothing is what it seemed for eight episodes. Sarah Snook’s performance transforms Marissa from victim to aggressor in shocking fashion.
The Cast and Creative Details Behind the Thriller
Here’s what you need to know about this gripping limited series:
| Series Title | All Her Fault |
| Streaming Platform | Peacock (Exclusive) |
| Release Date | November 6, 2025 |
| Total Episodes | 8 Episodes |
| Lead Cast | Sarah Snook, Dakota Fanning, Jake Lacy, Michael Peña |
| Based On | Novel by Andrea Mara (Published 2021) |
| Content Rating | TV-MA (Mature Audiences) |
The series adapts the bestselling book with significant creative flair. Creator Megan Gallagher masterfully builds suspense across all eight hours. The performances elevate every shocking plot twist immensely.
What Viewers Are Saying About This Wild Ending
- Fans call the finale “devastating” and “hard to predict” online
- Many viewers say they binged all episodes in one night
- Social media erupted with shock over the body count
- Critics highlight Sarah Snook’s transformation as brilliant
- Audiences debate whether season 2 is possible after this ending
Should You Watch All Her Fault?
Absolutely, but prepare yourself for intense violence and shocking twists. This isn’t a light thriller you can half-watch. The pacing sucks you in relentlessly from episode one. Every subplot pays off meaningfully in the finale.
If you loved psychological thrillers like Severance (where Sarah Snook also starred), you’ll appreciate this series. The writing keeps you guessing about who’s guilty. The ending completely reframes the entire mystery in devastating ways.
All eight episodes are available now on Peacock. You can stream them with a premium subscription. Watch the official trailer to see if this dark thriller appeals to you.
Watch the official trailer here:
Start streaming today on Peacock to experience this unforgettable mystery.
Sources
- Variety – In-depth coverage of the shock ending twists
- Time Magazine – Analysis of the finale’s devastating moments
- The Guardian – Critical review praising cast performances
Daniel Harris is a specialist journalist focused on the crossroads of breaking news, extraordinary history, and enduring legends. With a background in historical research and storytelling, he blends timely reporting with timeless narratives, making complex events and ancient myths resonate with today’s readers. Daniel’s work often uncovers surprising links between present-day headlines and legendary tales, offering unique perspectives that captivate diverse audiences. Beyond reporting, he is passionate about preserving oral traditions and exploring how extraordinary stories continue to shape culture and identity.